Home / 3,887.76-5,831.64-2,579.88

Finding the Fourth Proportional to 3,887.76, 5,831.64 and 2,579.88

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Solution

The fourth proportional to 3,887.76, 5,831.64 and 2,579.88 is: 3,869.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.76 : 5,831.64 = 2,579.88 : x
  2. Step 2: Convert to fraction form
    3,887.76/5,831.64 = 2,579.88/x
  3. Step 3: Cross multiply
    3,887.76x = 5,831.64 × 2,579.88
  4. Step 4: Simplify right side
    3,887.76x = 15,044,931.40
  5. Step 5: Solve for x
    x = 15,044,931.40/3,887.76
  6. Step 6: Final answer
    x = 3,869.82

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.